The aim of this investigation is to know which are the determinants of informal employment in small businesses Shoe District El Porvenir, for it, considering Structuralist and institutionalist theories. To obtain the information it has two moments, the first moment research is documentary and the second moment consists of fieldwork in which we used the survey to 367 total employees was calculated based on random sampling formula Simple, resulting from research, that the determinants of informal employment is the lack of labor law regime Mype this is due mainly to the lack of training in the law (79%) and the level of education with which have employees, another factor is given by the breach of the regulations due to lack of contracts (65%), and excess labor supply found in jobs that have very little job security such as the owner, assistant dresser and shoe manufacturing. Finally, the me...